JPH08295312A - Quantitative housing container of packing matter - Google Patents

Abstract

PURPOSE: To suppress the wt. irregularity of the quantitative housing container used in an automatic reversal discharge apparatus charging packing matter in a bag and the wt. irregularity of the packing matter charged in the bag. CONSTITUTION: A container 20a having a shape wherein an excessive wall part 23 (double shaded part, diameter D0 ) is added to the almost entire surface of the inside of the projection part 21 protruding from the outer peripheral region of the rear surface of a bottom wall in an annular shape is molded by the injection molding of plastic and a proper amt. of the excessive wall part 23 is cut off to obtain a quantitative housing container adjusted to a standard wt.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for storing a fixed amount of a filling material such as food which is applied to an automatic reversing and discharging device for the filling material.

[0002]

2. Description of the Related Art When packing a filling material that cannot be mechanically directly quantitatively filled directly into a bag, for example, a sticky filling material such as Fukujin pickled or sliced vegetables, Tsukudani kelp, or a piece of meat, Put the storage container on the platform scale in advance,
At the same time when the filling is stored manually, the tare is weighed, and the tare is weighed into the automatic reversing and discharging device. The method of filling is taken.

FIG. 4 shows the automatic reversing and discharging device (see Japanese Utility Model Publication No. 62-19527), in which a cylindrical fixed quantity container 1 containing a filling is sequentially fed on a supply conveyor 2 and is fed to the supply conveyor 2. After being temporarily stopped by the pair of locking bars 3 and 4 at the end, they are fed one by one by operating the locking bars 3 and 4, hitting the edge 5a of the opening of the guide tube 5 and reversing the inside of the guide tube 5. -It falls and collides with the stopper plate 6 in which the opening 6a is formed in the lower part of the guide cylinder 5 at the peripheral edge and stops. Due to the impact at this time, the filling material is discharged from the fixed amount storage container 1, dropped into the bag 9 through the opening 6a, the guide cylinder 7, and the charging hopper 8. Subsequently, when the cylinder 10 is operated and the guide cylinder 5 is tilted in the arrow direction,
The empty container 1a after discharging the filler moves on the stopper plate 6 while being held in the guide cylinder 5, slides on the guide plate 11 and is placed on the recovery conveyor 12, and is transported to a predetermined recovery location. It In addition, 13 is a cover.

As shown in FIG. 3, a conventional fixed quantity container 1 of this type generally has a large number of V-shaped grooves 15 in the longitudinal direction formed on its inner peripheral wall surface, and an inner bottom wall surface radiating from the center. It is a plastic bottomed cylindrical container having a V-shaped groove 16 in its cross section and a ring-shaped protrusion 17 in the outer peripheral area of the lower surface of the bottom wall. In order to prevent the filling material from sticking or sticking to the inner surface of the container when it is transferred into the bag,
All the fillings inside are discharged each time so that the product filling amount does not vary. In addition, as a quantitative storage container, as described in Japanese Utility Model Laid-Open No. 6-54511, a container having a large number of minute projections formed on its inner surface is also known.

[0005]

By the way, a large number of the above-mentioned fixed-quantity storage containers are simultaneously injection-molded by a plastic injection molding machine, but the weight at the time of molding varies due to a subtle difference in molding conditions. When a fixed quantity container having an outer diameter of 115 mm, an inner diameter of 105 mm and a height of 190 mm is molded using, a variation of about 20 g occurs. When the tare is weighed on the platform scale using such a quantitative storage container, the weight of the filling material filled in the bag via the automatic reversing discharge device also varies by 20 g, which is a product. It is the cause of defects. Further, in such a case, the weight is adjusted by scraping off the outer diameter and height of the container, which causes the timing difference of the reversing operation and the mechanical operation failure in the automatic reversing and discharging device. The present invention has been made in view of such conventional problems, and suppresses the variation in the weight of the fixed-quantity storage container without scraping off the outer diameter and height of the container, and thus the filling material to be filled in the bag. The purpose is to suppress the variation in the weight of.

[0006]

According to the present invention, a plastic bottomed cylindrical container formed by adding a surplus to the portion excluding the outer peripheral region of the bottom wall lower surface is cut to remove the appropriate amount of the surplus to a standard weight. The present invention relates to a container for storing a fixed amount of a filler, which is characterized by being adjusted. In the case where, for example, a protrusion protruding in a ring shape is formed in the outer peripheral area of the bottom surface of the bottom wall, the extra thickness is provided on substantially the entire inner surface of the protrusion.

[0007]

According to the present invention, the plastic bottomed cylindrical containers formed by adding a surplus to the lower surface of the bottom wall are sorted by the number of units used (usually about 150 per automatic reversal discharge device), Among them, the minimum weight is used as a guide and the excess thickness of the overweight container is trimmed to adjust the weight, and it is possible to obtain a fixed-quantity storage container with a uniform weight for each number of units used, resulting in variations in container weight. It is possible to eliminate the variation in the weight of the filling material.

Since the unnecessary shape of the container is removed to eliminate unnecessary thickness, the outer diameter dimension and height of the container are not changed, and a problem occurs when the container is thrown into the automatic reversal discharge device. Does not happen. If the weight is adjusted such that the outer diameter or height of the container is changed, the timing of falling from the supply conveyor into the guide cylinder and the timing of reversal become irregular for each container, and the container and the guide cylinder are The gap varies from container to container and the stop position of the container shifts horizontally from the center, which causes an obstacle to smooth continuous operation of the automatic reversing and discharging device.

[0008]

Embodiments of the present invention will be described below with reference to FIGS. In this embodiment, the container 20a, which has been molded by injection molding of plastic, has a large number of V-shaped cross-section grooves 15 formed in the longitudinal direction on the inner peripheral wall surface thereof, as in the conventional fixed volume container 1. A groove 16 having a V-shaped cross section is formed radially from the center on the bottom wall surface, and a ring-shaped projection 21 is formed on the lower surface of the bottom wall in the outer peripheral area. 1 (a), double-hatched portion, diameter D ₀ ). Although this extra thickness 23 has the same height as the protrusion 21, it may be formed low.

The weight of such a container 20a is measured, and the minimum weight of about 150 units is used as a reference. If the container is overweight, the excess thickness 23 is shaved to adjust the weight. The weight of all the containers 20a is adjusted to the standard weight. The fixed quantity container 20 shown in FIG.
The extra thickness 23 is cut and removed from the outer peripheral side until the reference weight is reached (until the portion of the extra thickness 23 becomes the diameter D). In addition, the weight may be adjusted by cutting so as to reduce the height of the surplus portion 23, or if the weight of the surplus portion to be removed by cutting is small, a drill hole is formed in the surplus portion 23. You can adjust the weight by opening the required number.

By adjusting the weight of the container 20a after injection molding in this way, an outer diameter of 115 mm, an inner diameter of 105 mm,
190 mm high polypropylene resin container 2
It was possible to suppress the weight variation in the unit of the used number of 0 within 1 g.

[0010]

According to the present invention, it is possible to obtain a fixed quantity container in which the weight is uniform for each unit used, and it is possible to suppress variations in product weight due to variations in container weight. In addition, since the external dimensions do not change, no trouble occurs when loading the automatic reversing and discharging device.

[Brief description of drawings]

FIG. 1 is a cross-sectional view (a) and a bottom view (b) of a container before weight adjustment according to an embodiment.

FIG. 2 is a cross-sectional view of a fixed amount storage container after weight adjustment according to an embodiment.

FIG. 3 is a plan view (a) and a sectional view (b) of a conventional fixed-quantity storage container.

FIG. 4 is an explanatory diagram of an automatic reversing and discharging device for filling materials.

[Explanation of symbols]

 15 and 16 V-shaped groove in cross section 20 Fixed amount storage container 20a Container before weight adjustment 23 Extra thickness

Claims (1)

[Claims] 1. A filling characterized in that a plastic bottomed cylindrical container formed by adding a surplus to a portion excluding the outer peripheral region of the bottom surface of the bottom wall is cut and removed to adjust to a standard weight. A container for a fixed amount of things.